Question
Electronic configuration 
has violated:
- Hund's rule
- Pauli's principle
- Aufbau principle
- (n+l) rule
The correct answer is: Hund's rule
Related Questions to study
The figure indicates the energy level diagram for the origin of six spectral lines in emission spectrum (e.g. line no. 5 arises from the transition from level B to X ) which of the following spectral lines will not occur in the absorption spectrum :
The figure indicates the energy level diagram for the origin of six spectral lines in emission spectrum (e.g. line no. 5 arises from the transition from level B to X ) which of the following spectral lines will not occur in the absorption spectrum :
The conductivity of 0.001 M acetic acid is 5 × 10–5 S cm–1 and 
is 390.5 S cm2 mol–1 then the calculated value of dissociation constant of acetic acid would be
The conductivity of 0.001 M acetic acid is 5 × 10–5 S cm–1 and is 390.5 S cm2 mol–1 then the calculated value of dissociation constant of acetic acid would be
Titration curves for 0.1M solution of three weak acids HA1 , HA2 and HA3 with ionization constants K1 , K2 and K3 respectively are plotted as shown in the figure. Which of the following is /are true?
Titration curves for 0.1M solution of three weak acids HA1 , HA2 and HA3 with ionization constants K1 , K2 and K3 respectively are plotted as shown in the figure. Which of the following is /are true?
Three cyclic structures of monosaccharides are given below which of these are anomers
I) 
II) 
III) 
Three cyclic structures of monosaccharides are given below which of these are anomers
I)
II)
III)
In the following structure, anomeric carbon is
In the following structure, anomeric carbon is
Family 
of curve represented by the differential equation of degree
In this question, we have to find the degree of the differential equation. The degree is highest power or order of the derivative in the differential equation.
Family of curve represented by the differential equation of degree
In this question, we have to find the degree of the differential equation. The degree is highest power or order of the derivative in the differential equation.
The differential equation 
(a is any constant) represents
The differential equation (a is any constant) represents
Two parallel forces not having the same line of action form a couple if they are
In this question, we have to find the are two parallel forces not having the same line of action form a couple. A couple is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment.
Two parallel forces not having the same line of action form a couple if they are
In this question, we have to find the are two parallel forces not having the same line of action form a couple. A couple is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment.
Any two coplanar couples of equal moments
In this question, two coplanar couples of equal moments. Moments of couple is called torque. When two couples are present whose moments are equal and opposite then the forces are already balanced.
Any two coplanar couples of equal moments
In this question, two coplanar couples of equal moments. Moments of couple is called torque. When two couples are present whose moments are equal and opposite then the forces are already balanced.
Forces of magnitudes 
and 
act at a point parallel to the sides of an equilateral triangle taken in order. The resultant of these forces, is
Here we have to find the resultant force of the given magnitude. Firstly, find the component of the force which is Fsin θ and Fcos θ.
Forces of magnitudes and act at a point parallel to the sides of an equilateral triangle taken in order. The resultant of these forces, is
Here we have to find the resultant force of the given magnitude. Firstly, find the component of the force which is Fsin θ and Fcos θ.
If two forces and 
make an angle 
with each other and their resultant makes an angle 
with the bisector of the angle between the two forces, then is equal to
If two forces and make an angle with each other and their resultant makes an angle with the bisector of the angle between the two forces, then is equal to
If the square of the resultant of two equal forces is equal to 
times their product, then the angle between the forces is
If the square of the resultant of two equal forces is equal to times their product, then the angle between the forces is
The maximum resultant of two forces is P and the minimum resultant is 
, the two forces are at right angles, the resultant is
The maximum resultant of two forces is P and the minimum resultant is , the two forces are at right angles, the resultant is
The resultant of two forces 
and 
is of magnitude P. If the force 
is doubled, 
remaining unaltered, the new resultant will be
The resultant of two forces and is of magnitude P. If the force is doubled, remaining unaltered, the new resultant will be
The resultant of two forces 3P and 2P is R, if the first force is doubled, the resultant is also doubled. The angle between the forces is
In this question, we have to make two equations of Resultant as per given instruction and solve the equations and find the angle. Remember the formula of Resultant is R = 
The resultant of two forces 3P and 2P is R, if the first force is doubled, the resultant is also doubled. The angle between the forces is
In this question, we have to make two equations of Resultant as per given instruction and solve the equations and find the angle. Remember the formula of Resultant is R =
